期货市场由于存在交易的投机性、价格变动的连续性和保证金杠杆作用，使其相对于现货市场而言具有更高的风险。
The futures market is faced with much more risk due to the speculative transactions, the continuity of the price changes and margin leverage compared with the spot market.
另外期货市场上保证金制度的存在，进一步引起价格的剧烈变动，导致过度投机，成倍地放大风险。
There exists margin system in futures market; further price volatility, resulting in excessive speculation, and doubling amplify risk.
这以后该帐户只剩有额外的1千美元可用作保证金，或当货币价格变动时用来增加或减少金额。
Therefore with the margin set aside, there would be another $1,000 in the account that is "usable margin" or the amount that would be added to or subtracted from when the currency price changes.
这以后该帐户只剩有额外的1千美元可用作保证金，或当货币价格变动时用来增加或减少金额。
Therefore with the margin set aside, there would be another $1,000 in the account that is "usable margin" or the amount that would be added to or subtracted from when the currency price changes.
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